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Non-destructive Testing Techniques - Inspection Technologies

NDT techniques
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TWI has been at the forefront of the research, development and application of many advanced and conventional non-destructive testing (NDT) technologies for more than 40 years.

The driving force behind these developments has been industry need for techniques to accurately locate, characterise and size flaws in every type of component and structure including pipelines, storage tanks, risers, rail track, ship hulls, pressure vessels, printed circuit boards and wind turbines, both on- and off-site.

We have developed and optimised NDT inspection systems to meet industry needs and our field services are in constant demand worldwide.

Our Expertise Includes:


All NDT techniques are able to evaluate the test piece without causing damage. However, each technique has its own advantages and applications.

Our comprehensive range of NDT techniques and equipment enables us to develop the optimum solution in any practical industrial situation, and our commercial independence allows us to offer impartial, expert advice.

For further information about TWI’s non-destructive testing services please email

We also provide NDT training which can be found on our training website.

For more information please email: